Mission 8 on SoS, pls. S ranked it second try but fuck me are most of the encounters impossible to generate any style points in. There's a real warped metric system on certain missions, as if some of them are just outright bugged. I'm pretty consistent but shit varies depending on very particular missions. Can't wait for mission 10 given the pain that was on DH to S rank.
Mission 10 is by far the hardest to S rank in my experience. I must be on my 30th try and still no S. It didn't take this long on DH lol. MIssion 12 and 18 after that.
Ignore all non mandatory fights, should help.